Valve-remover.



P. G. WIEST.

VALVE REMOVBR.

APPLICATION run my 1951909.

Patented Nov. 29, 1910.

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PETER C. WIEST, OF YORK, PENNSYLVANIA.

VALVE-BEMOVER.

Specification of Letters Patent.

Patented Nov. 29, 1910.

Application filed May 19, 1909. Serial No. 496,960.

To all whom it may concern:

Be it known that 1, PETER C. lvins'r, a citizen of the United States ofAmerica, residing at York, Pennsylvania, have invented certain new anduseful Improvements in Valve-Removers, of which the following is aspecification.

My invention relates to a device particularly adapted for compressingthe valvesprings of explosive engines and the like, to provide forrelieving the pressure of the springs on the valves, in order that saidvalves may be conveniently removed.

It is well understood by those familiar with the explosive type ofengine that the springs which retain the valves seated, act withconsiderable power, and as it is frequently necessary to raise thesevalves, it is the object of the present invention to provide an improvedtool for this purpose which is of simple strong and durableconstruction.

Figure 1 is a side elevation of the valve remover showing the same inits applied position and illustrating certain parts of a gas enginevalve mechanism in section. Fig. 2 is an enlarged perspective view ofthe valve remover. Fig. 3 is a bottom plan view of the lever.

The numeral 1 denotes a valve of the ordinary type used-in explosiveengines, 2 the valve rod, 3 the spring and 4 a washer slidable over thevalve rod, upon which the spring bears.

The tool comprises a lever indicated by 5, the forward end of whichterminates in a fork 6, the prongs of which form the spring engagingmeans, while the slot or open portion 8 is adapted to receive the stemof the valve, to provide for the insertion of the tool beneath thespring.

My improved tool also comprises a fulcrum member, consisting of a post10, threaded a suitable distance of its length, for the accommodation ofa bearing plate 11 mounted thereupon. It will be obvious, due to thethreaded connection between the post and plate, that the latter may bereadily adjusted, to ada t the tool for the use under differentconditions. In the plate 11 are two recesses 12 for the reception of thedownwardly turned ends 7 of the fork 6, which hold said end inengagement with the plate when the tool is in use. T o further preventthe lever 5 from becoming displaced, separated from the fulcrum memberwhile being used I provide the plate 11 with a flange 11 upon three ofits sides, so that should the members 7 become unseated they would beprevented from slipping from the plate. The lever 5 is provided with twosets of fulcrum points 7 and 7 spaced apart along the length of the slot8 so as to form a lever of the first and second order as may be foundexpedient in order to obtain the necessary purchase on the valve springto lift the latter. Either set of fulcrum points 7 and 7 may be broughtinto engagement with the sockets 12 of the fulcrum plate as will bereadily apparent, thus increasing the utility of the device as a whole.

To illustrate the manner of using my improved tool, I have, in Fig. 1,shown the same as applied for its designed purpose of compressing thevalve spring of an explosive engine. The engine parts shown are ofconventional form and will be readily under stood by persons skilled inthe art, without a detailed description thereof, the valve 1 beingmaintained normally closed by means of a spring 3, inserted between thevalve casing and a washer t secured to the valve stem 2 by means of theusual key 13 inserted through a keyway formed in said valve stem, theforce of the valvespring 3 being applied to the valve through the mediumof said washer and key.

When it is desired to remove the valve the fulcrum member is placed inposition, the plate 11 adjusted to the required height and the leverinserted beneath the spring around the valve rod, and the ends 7 of thefork, seated in the recesses 12. By means of the lever 5 the spring maynow be easily compressed to relieve the key 13 from the pressure thereofand the key removed, whereupon the valve 1 with its stem is free to bewithdrawn through a suitable opening provided for the purpose in thevalve chamber, said opening being normally closed by means of a suitableplug 1 1.

Having thus fully described my invention what I claim is:

A valve remover comprising a threaded stem forming a fulcrum blocksupport, a fulcrum block having threaded and rotatable connection Withsaid stem and a valve In testimony whereof I have hereunto set sprmgeompressmg lever embodymg a my hand 1n presence of two subscrlblng Wltforked end, the arms of WlllCh form an open nesses.

slot to receive said stem and are provided PETER C. VIEST. With aplurality of sets of fulcrum points Vitnesses: spaced apart along thelength of the slot for A. J. BRENNEMAN,

engagement With the fulcrum block. N. S. Ross.

